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TLine Class Reference

A simple line.

Definition at line 41 of file TLine.h.

Public Types

enum  { kLineNDC = BIT(14), kVertical = BIT(15), kHorizontal = BIT(16) }
 
- Public Types inherited from TObject
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 

Public Member Functions

 TLine ()
 
 TLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2)
 Line normal constructor. More...
 
 TLine (const TLine &line)
 Line copy constructor. More...
 
virtual ~TLine ()
 Line default destructor. More...
 
void Copy (TObject &line) const
 Copy this line to line. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Compute distance from point px,py to a line. More...
 
virtual TLineDrawLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2)
 Draw this line with new coordinates. More...
 
virtual TLineDrawLineNDC (Double_t x1, Double_t y1, Double_t x2, Double_t y2)
 Draw this line with new coordinates in NDC. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to one event. More...
 
Double_t GetX1 () const
 
Double_t GetX2 () const
 
Double_t GetY1 () const
 
Double_t GetY2 () const
 
Bool_t IsHorizontal ()
 Check whether this line is to be drawn horizontally. More...
 
Bool_t IsVertical ()
 Check whether this line is to be drawn vertically. More...
 
virtual void ls (Option_t *option="") const
 List this line with its attributes. More...
 
virtual void Paint (Option_t *option="")
 Paint this line with its current attributes. More...
 
virtual void PaintLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2)
 Draw this line with new coordinates. More...
 
virtual void PaintLineNDC (Double_t u1, Double_t v1, Double_t u2, Double_t v2)
 Draw this line with new coordinates in NDC. More...
 
virtual void Print (Option_t *option="") const
 Dump this line with its attributes. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save primitive as a C++ statement(s) on output stream out. More...
 
virtual void SetNDC (Bool_t isNDC=kTRUE)
 Set NDC mode on if isNDC = kTRUE, off otherwise. More...
 
void SetHorizontal (Bool_t set=kTRUE)
 Force the line to be drawn horizontally. More...
 
void SetVertical (Bool_t set=kTRUE)
 Force the line to be drawn vertically. More...
 
virtual void SetX1 (Double_t x1)
 
virtual void SetX2 (Double_t x2)
 
virtual void SetY1 (Double_t y1)
 
virtual void SetY2 (Double_t y2)
 
virtual Rectangle_t GetBBox ()
 Return the bounding Box of the Line. More...
 
virtual TPoint GetBBoxCenter ()
 Return the center of the BoundingBox as TPoint in pixels. More...
 
virtual void SetBBoxCenter (const TPoint &p)
 Set center of the BoundingBox. More...
 
virtual void SetBBoxCenterX (const Int_t x)
 Set X coordinate of the center of the BoundingBox. More...
 
virtual void SetBBoxCenterY (const Int_t y)
 Set Y coordinate of the center of the BoundingBox. More...
 
virtual void SetBBoxX1 (const Int_t x)
 Set left hand side of BoundingBox to a value (resize in x direction on left) More...
 
virtual void SetBBoxX2 (const Int_t x)
 Set right hand side of BoundingBox to a value (resize in x direction on right) More...
 
virtual void SetBBoxY1 (const Int_t y)
 Set top of BoundingBox to a value (resize in y direction on top) More...
 
virtual void SetBBoxY2 (const Int_t y)
 Set bottom of BoundingBox to a value (resize in y direction on bottom) More...
 
- Public Member Functions inherited from TObject
 TObject ()
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current pad. More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual Option_tGetOption () const
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsSortable () const
 
Bool_t IsOnHeap () const
 
Bool_t IsZombie () const
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 
voidoperator new (size_t sz)
 
voidoperator new[] (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz, void *vp)
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
void ResetBit (UInt_t f)
 
Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
void InvertBit (UInt_t f)
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
- Public Member Functions inherited from TAttLine
 TAttLine ()
 AttLine default constructor. More...
 
 TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth)
 AttLine normal constructor. More...
 
virtual ~TAttLine ()
 AttLine destructor. More...
 
void Copy (TAttLine &attline) const
 Copy this line attributes to a new TAttLine. More...
 
Int_t DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
 Compute distance from point px,py to a line. More...
 
virtual Color_t GetLineColor () const
 
virtual Style_t GetLineStyle () const
 
virtual Width_t GetLineWidth () const
 
virtual void Modify ()
 Change current line attributes if necessary. More...
 
virtual void ResetAttLine (Option_t *option="")
 Reset this line attributes to default values. More...
 
virtual void SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
 Save line attributes as C++ statement(s) on output stream out. More...
 
virtual void SetLineAttributes ()
 Invoke the DialogCanvas Line attributes. More...
 
virtual void SetLineColor (Color_t lcolor)
 
virtual void SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
 Set a transparent line color. More...
 
virtual void SetLineStyle (Style_t lstyle)
 
virtual void SetLineWidth (Width_t lwidth)
 
 ClassDef (TAttLine, 2)
 
- Public Member Functions inherited from TAttBBox2D
virtual ~TAttBBox2D ()
 
 ClassDef (TAttBBox2D, 0)
 

Protected Attributes

Double_t fX1
 
Double_t fY1
 
Double_t fX2
 
Double_t fY2
 
- Protected Attributes inherited from TAttLine
Color_t fLineColor
 
Style_t fLineStyle
 
Width_t fLineWidth
 

Additional Inherited Members

- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Protected Member Functions inherited from TObject
void MakeZombie ()
 
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 

#include <TLine.h>

Inheritance diagram for TLine:
[legend]

Member Enumeration Documentation

anonymous enum
Enumerator
kLineNDC 
kVertical 
kHorizontal 

Definition at line 51 of file TLine.h.

Constructor & Destructor Documentation

TLine::TLine ( )

Referenced by DrawLine(), and TGaxis::PaintAxis().

TLine::TLine ( Double_t  x1,
Double_t  y1,
Double_t  x2,
Double_t  y2 
)

Line normal constructor.

Definition at line 42 of file TLine.cxx.

TLine::TLine ( const TLine line)

Line copy constructor.

Definition at line 58 of file TLine.cxx.

TLine::~TLine ( )
virtual

Line default destructor.

Definition at line 51 of file TLine.cxx.

Member Function Documentation

void TLine::Copy ( TObject line) const
virtual

Copy this line to line.

Reimplemented from TObject.

Definition at line 67 of file TLine.cxx.

Referenced by TArrow::Copy().

Int_t TLine::DistancetoPrimitive ( Int_t  px,
Int_t  py 
)
virtual

Compute distance from point px,py to a line.

Reimplemented from TObject.

Definition at line 80 of file TLine.cxx.

Referenced by TTreePerfStats::DistancetoPrimitive().

TLine * TLine::DrawLine ( Double_t  x1,
Double_t  y1,
Double_t  x2,
Double_t  y2 
)
virtual

Draw this line with new coordinates.

Definition at line 93 of file TLine.cxx.

Referenced by DrawLineNDC(), TInspectCanvas::InspectObject(), and mp3player().

TLine * TLine::DrawLineNDC ( Double_t  x1,
Double_t  y1,
Double_t  x2,
Double_t  y2 
)
virtual

Draw this line with new coordinates in NDC.

Definition at line 105 of file TLine.cxx.

void TLine::ExecuteEvent ( Int_t  event,
Int_t  px,
Int_t  py 
)
virtual

Execute action corresponding to one event.

This member function is called when a line is clicked with the locator

If Left button clicked on one of the line end points, this point follows the cursor until button is released.

if Middle button clicked, the line is moved parallel to itself until the button is released.

Reimplemented from TObject.

Reimplemented in TASPaletteEditor::LimitLine.

Definition at line 122 of file TLine.cxx.

Rectangle_t TLine::GetBBox ( )
virtual

Return the bounding Box of the Line.

Implements TAttBBox2D.

Definition at line 521 of file TLine.cxx.

TPoint TLine::GetBBoxCenter ( )
virtual

Return the center of the BoundingBox as TPoint in pixels.

Implements TAttBBox2D.

Definition at line 545 of file TLine.cxx.

Double_t TLine::GetX1 ( ) const
inline
Double_t TLine::GetX2 ( ) const
inline

Definition at line 68 of file TLine.h.

Referenced by TPaveText::PaintPrimitives(), TPaveText::SaveLines(), and TLineEditor::SetModel().

Double_t TLine::GetY1 ( ) const
inline
Double_t TLine::GetY2 ( ) const
inline

Definition at line 70 of file TLine.h.

Referenced by TPaveText::PaintPrimitives(), TPaveText::SaveLines(), and TLineEditor::SetModel().

Bool_t TLine::IsHorizontal ( )

Check whether this line is to be drawn horizontally.

Definition at line 428 of file TLine.cxx.

Referenced by TLineEditor::SetModel().

Bool_t TLine::IsVertical ( )

Check whether this line is to be drawn vertically.

Definition at line 436 of file TLine.cxx.

Referenced by TLineEditor::SetModel().

void TLine::ls ( Option_t option = "") const
virtual

List this line with its attributes.

Reimplemented from TObject.

Definition at line 362 of file TLine.cxx.

void TLine::Paint ( Option_t option = "")
virtual

Paint this line with its current attributes.

Reimplemented from TObject.

Reimplemented in TGaxis, TASPaletteEditor::LimitLine, and TArrow.

Definition at line 371 of file TLine.cxx.

Referenced by TLineEditor::DoEndPoint(), TLineEditor::DoStartPoint(), TASPaletteEditor::LimitLine::Paint(), TParallelCoordVar::PaintHistogram(), and TLegend::PaintPrimitives().

void TLine::PaintLine ( Double_t  x1,
Double_t  y1,
Double_t  x2,
Double_t  y2 
)
virtual
void TLine::PaintLineNDC ( Double_t  u1,
Double_t  v1,
Double_t  u2,
Double_t  v2 
)
virtual

Draw this line with new coordinates in NDC.

Definition at line 389 of file TLine.cxx.

Referenced by Paint(), TGaxis::PaintAxis(), and TLegend::PaintPrimitives().

void TLine::Print ( Option_t option = "") const
virtual

Dump this line with its attributes.

Reimplemented from TObject.

Definition at line 398 of file TLine.cxx.

void TLine::SavePrimitive ( std::ostream &  out,
Option_t option = "" 
)
virtual

Save primitive as a C++ statement(s) on output stream out.

Reimplemented from TObject.

Reimplemented in TGaxis, and TArrow.

Definition at line 410 of file TLine.cxx.

void TLine::SetBBoxCenter ( const TPoint p)
virtual

Set center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 556 of file TLine.cxx.

void TLine::SetBBoxCenterX ( const Int_t  x)
virtual

Set X coordinate of the center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 581 of file TLine.cxx.

void TLine::SetBBoxCenterY ( const Int_t  y)
virtual

Set Y coordinate of the center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 597 of file TLine.cxx.

void TLine::SetBBoxX1 ( const Int_t  x)
virtual

Set left hand side of BoundingBox to a value (resize in x direction on left)

Implements TAttBBox2D.

Definition at line 614 of file TLine.cxx.

void TLine::SetBBoxX2 ( const Int_t  x)
virtual

Set right hand side of BoundingBox to a value (resize in x direction on right)

Implements TAttBBox2D.

Definition at line 626 of file TLine.cxx.

void TLine::SetBBoxY1 ( const Int_t  y)
virtual

Set top of BoundingBox to a value (resize in y direction on top)

Implements TAttBBox2D.

Definition at line 637 of file TLine.cxx.

void TLine::SetBBoxY2 ( const Int_t  y)
virtual

Set bottom of BoundingBox to a value (resize in y direction on bottom)

Implements TAttBBox2D.

Definition at line 649 of file TLine.cxx.

void TLine::SetHorizontal ( Bool_t  set = kTRUE)

Force the line to be drawn horizontally.

Makes fY2 equal to fY1. The line length is kept. TArrow and TGaxis also get this function by inheritance.

Definition at line 455 of file TLine.cxx.

Referenced by TLineEditor::DoLineHorizontal(), and SetVertical().

void TLine::SetNDC ( Bool_t  isNDC = kTRUE)
virtual

Set NDC mode on if isNDC = kTRUE, off otherwise.

Definition at line 444 of file TLine.cxx.

Referenced by ExecuteEvent().

void TLine::SetVertical ( Bool_t  set = kTRUE)

Force the line to be drawn vertically.

Makes fX2 equal to fX1. The line length is kept. TArrow and TGaxis also get this function by inheritance.

Definition at line 476 of file TLine.cxx.

Referenced by TLineEditor::DoLineVertical(), and SetHorizontal().

virtual void TLine::SetX1 ( Double_t  x1)
inlinevirtual
virtual void TLine::SetX2 ( Double_t  x2)
inlinevirtual
virtual void TLine::SetY1 ( Double_t  y1)
inlinevirtual
virtual void TLine::SetY2 ( Double_t  y2)
inlinevirtual

Member Data Documentation

Double_t TLine::fX1
protected
Double_t TLine::fX2
protected
Double_t TLine::fY1
protected
Double_t TLine::fY2
protected
Collaboration diagram for TLine:
[legend]

The documentation for this class was generated from the following files: